使用异步页面的ASP.NET中彗星更容易吗？

ASPNET在2005年推出了“异步页面”.想法是apply the familiar .NET asynch model to ASP.NET page processing.

public partial class AsyncPage : System.Web.UI.Page
{
    private WebRequest _request;

    void Page_Load (object sender,EventArgs e)
    {
        AddOnPreRenderCompleteAsync (
            new BeginEventHandler(BeginAsyncOperation),new EndEventHandler (EndAsyncOperation)
        );
    }

    IAsyncResult BeginAsyncOperation (object sender,EventArgs e,AsyncCallback cb,object state)
    {
        _request = WebRequest.Create("http://msdn.microsoft.com");
        return _request.BeginGetResponse (cb,state);
    }
    void EndAsyncOperation (IAsyncResult ar)
    {
        string text;
        using (WebResponse response = _request.EndGetResponse(ar))
        {
            using (StreamReader reader = 
                new StreamReader(response.GetResponseStream()))
            {
                text = reader.ReadToEnd();
            }
        }

        Regex regex = new Regex ("hrefs*=s*"([^"]*)"",RegexOptions.IgnoreCase);
        MatchCollection matches = regex.Matches(text);

        StringBuilder builder = new StringBuilder(1024);
        foreach (Match match in matches)
        {
            builder.Append (match.Groups[1]);
            builder.Append("<br/>");
        }

        Output.Text = builder.ToString ();
    }
}

问题1：对于Comet风格的应用程序,这不会使ASP.NET规模更好吗？
有人用过这个并测试过吗？

我认为其他服务器端框架也有类似的东西.如果我没有弄错Jetty就有这样的事情,那么就可以在Comet场景中实现更好的比例.

Q2：有人能说清楚吗？